19757880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{773}}^1$

素因数の和:861

約数の個数: 96

約数和(自身を含む): 65201760

約数和(自身を除く): 45443880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 773, 852, 1065, 1278, 1420, 1546, 1704, 2130, 2319, 2556, 2840, 3092, 3195, 3865, 4260, 4638, 5112, 6184, 6390, 6957, 7730, 8520, 9276, 11595, 12780, 13914, 15460, 18552, 23190, 25560, 27828, 30920, 34785, 46380, 54883, 55656, 69570, 92760, 109766, 139140, 164649, 219532, 274415, 278280, 329298, 439064, 493947, 548830, 658596, 823245, 987894, 1097660, 1317192, 1646490, 1975788, 2195320, 2469735, 3292980, 3951576, 4939470, 6585960, 9878940, 19757880]

約数ペア:

[(1, 19757880), (2, 9878940), (3, 6585960), (4, 4939470), (5, 3951576), (6, 3292980), (8, 2469735), (9, 2195320), (10, 1975788), (12, 1646490), (15, 1317192), (18, 1097660), (20, 987894), (24, 823245), (30, 658596), (36, 548830), (40, 493947), (45, 439064), (60, 329298), (71, 278280), (72, 274415), (90, 219532), (120, 164649), (142, 139140), (180, 109766), (213, 92760), (284, 69570), (355, 55656), (360, 54883), (426, 46380), (568, 34785), (639, 30920), (710, 27828), (773, 25560), (852, 23190), (1065, 18552), (1278, 15460), (1420, 13914), (1546, 12780), (1704, 11595), (2130, 9276), (2319, 8520), (2556, 7730), (2840, 6957), (3092, 6390), (3195, 6184), (3865, 5112), (4260, 4638)]